Margo found that 3x741 = 2,223. How could you use mental math to find the product of 6 x 741?

1 answer:

3 0

Since 3 x 741 = 2223, we know 2x3= 6 so if we multiply 2 to 3 on the left side of the equation to get 6 then we can multiply a 2 to 2223 we can multiply 2 x 2223=4446.

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Some kangaroos can cover 30 feet in a single jump if a kangaroo counts jump like that 150 times in a row how much farther wound

Svetradugi [14.3K]

Answer:

Distance farther the Kangaroos need to go to cover a mile = 780 feet

Step-by-step explanation:

Given:

Kangaroos cover 30 feet in a single jump.

Kangaroos can make such jumps 150 times in a row.

To find the distance farther it needs to go to cover a mile.

Solution:

Using unitary method to find distance covered by kangaroos in a row.

If in a single jump Kangaroos cover = 30 feet

So, in 150 jumps it will cover = $30\ ft \times 150$ = 4500 feet

We know 1 mile = 5280 feet

Thus, distance farther the Kangaroo needs to go to cover a mile will be = $5280\ ft-4500\ ft$ = 780 feet

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3 years ago

the dimensions of a triangle with base 4m and height 5m are multiplied by 3. How is the area affected?

Lubov Fominskaja [6]

Answer:

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Step-by-step explanation:

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4 years ago

B is the midpoint of AC. What is the length of AB? AB is 9x+7 and BC is -3x+20

ahrayia [7]

<h3>Answer:</h3>

$AB = \frac{67}{4}\\$

<h3>Step-by-step explanation:</h3>

If $B$ is the midpoint of $\overline{AC}$ then $AB$ is just half of $AC$ and also, $BC$ is just half of $AC$ . This means that $AB$ must be equal to $BC$ . Essentially, $9x +7 = -3x +20$ and we can solve for the of $x$ from that equation.